简易的测电压装置基于msp430g553

circlewang

简易的测电压装置基于msp430g553 [复制链接]

#include "msp430g2553.h"
unsigned char seg_7[10]={0x40,0x79,0x24,0x30,0x19,0x12,0x02,0x78,0x00,0x10};
unsigned char seg_8[10]={0xC0,0xF9,0xA4,0xB0,0x99,0x92,0x82,0xF8,0x80,0x90};
float i=0;
int ge=0;
int f=0;
int m=0;
int h=0;
int temp=0;

void main(void)
{
  WDTCTL = WDTPW + WDTHOLD;                 // Stop WDT
  ADC10CTL0 = ADC10SHT_2 + ADC10ON + ADC10IE; // ADC10ON, interrupt enabled
  ADC10CTL1 = INCH_1;                       // input A1
  ADC10AE0 |= 0x02;                         // PA.1 ADC option select
  P1DIR=0xf0;       // Set P1.0 to output direction

  P2DIR|=0xff;
  P2SEL&=0x00;

  for (;;)
  {
    ADC10CTL0 |= ENC + ADC10SC;             // Sampling and conversion start
   // __bis_SR_register(CPUOFF + GIE);        // LPM0, ADC10_ISR will force exit
    i=(float)ADC10MEM;
    i=i/1023;
    i=i*3600;
    temp=(int)i;
    ge=temp/1000;
    temp=temp%1000;
    f=temp/100;
    temp=temp%100;
    m=temp/10;
    temp=temp%10;
    h=temp;

 

    P1OUT=0x7f;
    P2OUT=seg_7[ge];
  _delay_cycles(1000);
    P1OUT=0xbf;
    P2OUT=seg_8[f];
    _delay_cycles(1000);
    P1OUT=0xdf;
    P2OUT=seg_8[m];
    _delay_cycles(1000);
 P1OUT=0xef;
 P2OUT=seg_8[h];
 _delay_cycles(1000);

 

 

  }
}

// ADC10 interrupt service routine
#pragma vector=ADC10_VECTOR
__interrupt void ADC10_ISR(void)
{
 _delay_cycles(100000);
 // __bic_SR_register_on_exit(CPUOFF);        // Clear CPUOFF bit from 0(SR)
}